/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayEffectExecutionCalculation.h
Attempts to calculate the bonus magnitude of a transient aggregator given the specified parameters.
True if the bonus magnitude was successfully calculated, false if it was not
bool AttemptCalculateTransientAggregatorBonusMagnitude ( const [FGameplayTag](API\Runtime\GameplayTags\FGameplayTag) & InAggregatorIdentifier, const [FAggregatorEvaluateParameters](API\Plugins\GameplayAbilities\FAggregatorEvaluateParameters) & InEvalParams, float & OutBonusMagnitude ) const